22779507853 has 2 divisors, whose sum is σ = 22779507854. Its totient is φ = 22779507852.

The previous prime is 22779507811. The next prime is 22779507887. The reversal of 22779507853 is 35870597722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21286226404 + 1493281449 = 145898^2 + 38643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22779507853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22779507794 and 22779507803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22779507893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11389753926 + 11389753927.

It is an arithmetic number, because the mean of its divisors is an integer number (11389753927).

Almost surely, 2^22779507853 is an apocalyptic number.

It is an amenable number.

22779507853 is a deficient number, since it is larger than the sum of its proper divisors (1).

22779507853 is an equidigital number, since it uses as much as digits as its factorization.

22779507853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7408800, while the sum is 55.

The spelling of 22779507853 in words is "twenty-two billion, seven hundred seventy-nine million, five hundred seven thousand, eight hundred fifty-three".